共查询到20条相似文献,搜索用时 46 毫秒
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孙雪梅 《中外葡萄与葡萄酒》1992,(3):29-31
葡萄酒是一种低度营养酒.根据QB921-84规定,干酒的酒度7-13%(V/V),甜酒的酒度12-14%(V/V).酒度在16%(V/V)以上的葡萄酒,因酒精的杀菌抑菌作用,装瓶后一般不会引起生物败坏.16%(V/V)以下含糖份的葡萄酒,因为酒度低,如果不采用无菌灌装工艺,装瓶后又不煮酒杀菌,就可能引起装瓶后再发酵. 相似文献
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本文介绍国产无菌袋式大包装的灌装设备-液体无菌自动灌装机的结构及性能,同时也介绍了其配套它设备的选用及工艺流程方案的选择。 相似文献
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何孝武 《酒.饮料技术装备》2008,(1):24-25
本文根据无菌冷灌装技术的生产装备设计纲要,围绕实现该项技术所要求具备的三个基本生产条件,即物料无菌,包材无菌,生产装备和环境无菌,论述了保证无菌冷灌装生产工艺正常稳定运行的基本要领。 相似文献
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通过对瞬时巴氏杀菌、隧道式喷淋巴氏杀菌、膜过滤啤酒技术对瓶装啤酒生产新鲜度的研究比较,研究了瞬时巴氏杀菌用于瓶装啤酒生产的关键工艺参数以及控制模式。比较了3种杀菌模式生产的啤酒的理化指标、保鲜期长短的变化。结果表明,瞬时巴氏杀菌对啤酒泡持性和保鲜期的延长优于膜过滤纯生啤酒和隧道式巴氏杀菌啤酒。瞬时巴氏杀菌消耗低、成本低、简便易行。 相似文献
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《四川食品与发酵》2021,(1)
以鲜榨刺梨汁为原料,研究对比了超高温瞬时灭菌(UHT)后与未灭菌的刺梨汁在4℃和常温避光条件下4组样品贮藏的品质变化,对刺梨汁Vc、SOD、单宁、pH值、总酸、可溶性固形物与微生物指标进行8周的动态监测。结果表明,UHT灭菌的刺梨汁在4℃冷藏与常温避光贮藏8周后,Vc保留率分别为90.91±0.7%与87.58±0.9%;SOD酶活性保存率分别为89.9±1.81%与85.82±3.49%;未经过UHT处理的刺梨汁在4℃冷藏与常温避光贮藏8周后,Vc保留率分别为78.89±0.43%与41.19±3.1%;SOD酶活性保存率分别为51±3.78%与41.8±7.33%;四组样品pH值均呈下降趋势,总酸含量均呈先上升后稳定的趋势;此外,在不同贮藏温度下UHT处理与未灭菌对单宁含量与可溶性固形物含量几乎没有影响(P>0.05);UHT处理组菌落总数与大肠杆菌均未检出,未灭菌刺梨汁菌落总数在第4周开始出现增长。结果表明UHT处理能有效保留刺梨汁中营养与生物活性物质,延长产品货架期;低温有利于刺梨产品的保藏。 相似文献
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Cristiana Garofalo Andrea Osimani Vesna Milanović Manuela Taccari Lucia Aquilanti Francesca Clementi 《Journal of food science》2015,80(12):M2845-M2852
Beer is one of the world's most ancient and widely consumed fermented alcoholic beverages produced with water, malted cereal grains (generally barley and wheat), hops, and yeast. Beer is considered an unfavorable substrate of growth for many microorganisms, however, there are a limited number of bacteria and yeasts, which are capable of growth and may spoil beer especially if it is not pasteurized or sterile‐filtered as craft beer. The aim of this research study was to track beer spoilage lactic acid bacteria (LAB) inside a brewery and during the craft beer production process. To that end, indoor air and work surface samples, collected in the brewery under study, together with commercial active dry yeasts, exhausted yeasts, yeast pellet (obtained after mature beer centrifugation), and spoiled beers were analyzed through culture‐dependent methods and PCR‐DGGE in order to identify the contaminant LAB species and the source of contamination. Lactobacillus brevis was detected in a spoiled beer and in a commercial active dry yeast. Other LAB species and bacteria ascribed to Staphylococcus sp., Enterobaceriaceae, and Acetobacter sp. were found in the brewery. In conclusion, the PCR‐DGGE technique coupled with the culture‐dependent method was found to be a useful tool for identifying the beer spoilage bacteria and the source of contamination. The analyses carried out on raw materials, by‐products, final products, and the brewery were useful for implementing a sanitization plan to be adopted in the production plant. 相似文献
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